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Torsemide

Torsemide Side Effects

Kristianne Hannemann, PharmDCydnee Ng, PharmD
Reviewed by Kristianne Hannemann, PharmD, Cydnee Ng, PharmD
Last reviewed on November 5, 2025

The following side effects may get better over time as your body gets used to the medication. Let your healthcare provider know immediately if you continue to experience these symptoms or if they worsen over time.

Common Side Effects

  • Urinating more

Less Common Side Effects

  • Higher blood sugar levels
  • Lower potassium levels

Torsemide serious side effects

Contact your healthcare provider immediately if you experience any of the following.

  • Low blood pressure: dizziness, lightheaded, fainting
  • Severe dehydration: dizziness, confusion, exhaustion, dry skin, dark urine, not urinating as much as usual
  • Electrolyte imbalance: dizziness, tiredness, headache, muscle weakness, muscle cramps, shortness of breath, confusion
  • Serious skin reaction: painful blisters, peeling skin, rash
When do Torsemide possible side effects begin and end?
Time passed since treatment started:
M
H
D
W
M
Urinating more after taking

Source: DailyMed

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The following Torsemide side effects have also been reported

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur:

Less common

Chest pain

convulsions

decreased urination

diarrhea

dry mouth

increased thirst

irregular heartbeat

loss of appetite

mood changes

muscle pain or cramps

nausea or vomiting

numbness or tingling in the hands, feet, or lips

shortness of breath

swelling of the hands, ankles, feet, or lower legs

unusual tiredness or weakness

Rare

Black, tarry stools

dizziness, faintness, or lightheadedness when getting up from a suddenly sitting or lying position

ringing or buzzing in the ears or any hearing loss

skin rash

Get emergency help immediately if any of the following symptoms of overdose occur:

Symptoms of overdose

Blurred vision

coma

confusion

decreased urine output

dizziness

drowsiness

fainting

fast heartbeat

headache

increase in heart rate

irritability

lightheadedness

rapid breathing

sunken eyes

sweating

unusual tiredness or weakness

weak pulse

wrinkled skin

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

More common

Increase in urination

Less common

Acid or sour stomach

belching

difficulty having a bowel movement (stool)

difficulty in moving

heartburn

increased cough

indigestion

joint pain

lack or loss of strength

muscle pain or stiffness

nervousness

pain in the joints

runny nose

sneezing

sore throat

stomach discomfort, upset, or pain

stuffy nose

swollen joints

trouble sleeping

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

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